SourceCodester Loan Management System 1.0 Loan Plans months logic error

CVSS Meta Temp Score
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CTI Interest Score
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2.6$0-$5k0.00

Summaryinfo

A vulnerability was found in SourceCodester Loan Management System 1.0. It has been classified as problematic. This affects an unknown function of the component Loan Plans Handler. Performing a manipulation of the argument months results in logic error. This vulnerability is identified as CVE-2026-30523. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in SourceCodester Loan Management System 1.0. This affects an unknown code block of the component Loan Plans Handler. The manipulation of the argument months with an unknown input leads to a logic error vulnerability. CWE is classifying the issue as CWE-840. This is going to have an impact on integrity. The summary by CVE is:

A Business Logic vulnerability exists in SourceCodester Loan Management System v1.0 due to the lack of proper input validation. The application allows administrators to define "Loan Plans" which determine the duration of a loan (in months). However, the backend fails to validate that the duration must be a positive integer. An attacker can submit a negative value for the months parameter. The system accepts this invalid data and creates a loan plan with a negative duration.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-30523 since 03/04/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/01/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17897). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.6

VulDB Base Score: 2.7
VulDB Temp Score: 2.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Logic error
CWE: CWE-840
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

03/04/2026 CVE reserved
04/01/2026 +27 days Advisory disclosed
04/01/2026 +0 days VulDB entry created
04/01/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: sourcecodester.com

Advisory: github.com
Status: Not defined

CVE: CVE-2026-30523 (🔒)
GCVE (CVE): GCVE-0-2026-30523
GCVE (VulDB): GCVE-100-354681
EUVD: 🔒

Entryinfo

Created: 04/01/2026 17:46
Updated: 04/01/2026 19:39
Changes: 04/01/2026 17:46 (53), 04/01/2026 19:39 (1)
Complete: 🔍
Cache ID: 216::103

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Duplicate

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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